Oil-burner.



G. W. SMITH.

0H. BURNER.

APPLICATION HLED JAN.22. 1917.

Patented Jan. 22, 1918.

1,254,%&

a SHEETSSHEET 1.

G. W. SMITH.

OIL BURNER. APPLICATION FILED JAN.2Z. I917.

Patented Jan. 22, 1918.

3 SHEETS-SHEET 2- G. W. SMITH.

OIL BURNER.

A APPLICATION FILED JAN. 22. I917. 1,%54,23. Patented Jan.22,1918.

3 SHEETS-SHEET 3.

lilllllllllllllll llllllllllllllllllll @Mow @1 4 o D TATE FTEF Y areGEORGE W. SMITH, OF DAYTON, OHIO, ASSIGNOR TO AMERICAN BURNER COMPANY,OF

BUFFALO, NEW YORK, A CORPORATION OF DELAWARE.

OIL-BURNER.

Specification of Letters Patent.

'Patented J an. 22, 191%.

Application filed January 22, 1917. Serial No. 143,742.

To all whom it may concern:

Be it known that I, GEORGE W. SMITH, a citizen of the United States,residing Dayton, in the county of Montgomery and State of Ohio, haveinvented certain new and useful Improvements in Oil-Burners; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to makeand use the same. y i

This invention relates to improvements in burners, particularly thosewhich use fuel oil such as kerosene, and are adapted to be placed in thefire box of a stove. V

The principal object of the invention is to provide a very simplyconstructed, eflicient,

durable, and inexpensive device of this character.

An additional object is to provide a device having a base upon whichseveral forms of burners may be used, the latter being inter changeable.

Still another object is to provide a novel form of burner for the devicewhich will be more efficient than those of ordinary construction.

With these and other objects in view, the invention resides in the novelfeatures of construction, combination and arrangement of parts whichwill be hereinafter more particularly described and claimed, and shownin the drawings wherein;

Figure 1 is a vertical sectional view through a stove' of ordinaryconstruction showing my improved burner mounted in the fire box thereof;

Fig. 2 is a plan view partly in section as seen alon the line 2-4 ofFig. 1;

Fig. 3 1s a horizontal section taken on the line 3'3 of Fig. 1;

Fig. 4 is a vertical transverse section taken substantially on the planeof the line 44 of Fig. 1;

Fig. 5 is a detail horizontal section through one end of the mainburner;

Figs. 6 and 7 are transverse sections taken respectively on the lines 66and 77 of Fig. 5;

Fig. 8 is a detail longitudinal section through aportion of thegenerator tube;

Fig. 9 is a horizontal section through the generating member showingmore particularly the interior construction thereof;

Fig. 10 is a side elevation of a modified form of burner head whichmaybe used with the other parts of this invention;

Fig. 11 is a plan view of the burner shown in Fig. 10;

Fig. 12 is a vertical transverse section on the line 1212 of Fig. 11;

Fig. 13 is a plan view of still another form of burner head;

Fig. 14 is a side elevation of the last mentioned burner head; i

Fig. 15 is a plan view of a burner head somewhat similar to thatillustrated in Fi 13 and 14; and n V Fig. 16 is a side elevation of theburner illustrated in Fig. 15.

As hereinbefore mentioned, the invention is designed to be placed upon agrate within the fire box of a stove, and the burners are so arrangedthat the plates at the top of the stove and also the oven will beeffectively and thoroughly heated.

The invention comprises broadly a body member in which a liquid fuel isvaporized, a base for supporting said body, said base resting upon thegrate, and the burner proper, the latter being carried by the body andreceiving the vaporized fuel of the generator.

The body member designated by the numeral 1 is substantially J-shaped inplan view, it having a long arm 2 and a rela tively short arm 3, theformer being pro vided with a pair of bosses 4 and 5, one being disposedabove and the other below said arm at its free end. The lower boss 4! isformed integral wlth or otherwise connected to a base 6, while the otherboss 5 has a cen tral aperture formed therein through which the fuelpasses from the body member to a burner B detachably connectedtherewith. In Figs. 1 and 2 it will be seen that the arms of the bodymember are disposed substantially horizontal, and that the burner Bwhich is positioned over the long arm 2 in a similar plane.

The free end of the short arm 3 is enlarged as shown at 8 to form amixing cham her, the bottom of said enlarged portion being provided withan air inlet 9, while the gas from the generator G enters through oneside at the point 11. It will also be seen that the base 6 extendsbeyond said end of the arm 2 land underlies the generator Gr, this partforminga heating pan 12. end of the generator is supported by an ear 1.3projecting from thelbase.

The generator G, the construction of which is clearly illustrated inFig. 9, consists of ;a pair of parallel spaced pipes 1 1 and 15, thepipe 14 being termed, for the sake of convenience, the generating pipe,while the pipe 15 will be known as a superheating pipe. In forming thisgenerator G, a substantially H-shaped coupling 16 is provided, the mainorleg portions 17 and 18 of this coupling being connected by a shortcross pipe 19 in which is disposed a series of fine wire gauze screens20. Also positioned between and formed integrally with the main portions17 and 18 is an attaching car 21 bymeans of which the generator is con.

nected to the ear 13 on the base 6. The outer end of each portion 17 and18 is internally screw threaded, and in one end of the portion 17 isthreaded a valved plug 22, the same having a passageway thcrethroughwhich connects the interior of the coupling with a pipe 23 extendingfrom the source of fuel supply; the valve 24 controls the flow of liquidfuel from the pipe 23 to the other part of the generator.

The above mentioned generating pipe 141 is threaded in the other end ofthe portion 17 of the coupling 16, the outerend of'said pipebeing closedby a plug 25. lVithin the pipe 14 and in the portion 17 of the couplingis disposed an inner tube 26, one end of which is connected to' theinner end of the plug 22 and communicates with the passageway thereof,while the other end is open and terminates at a point spaced from theplug 25. Surrounding this inner tube 26 within the pipe 11 is a porousfire-resisting packing 27 which is preferably asbestos. It will be notedthat as the liquid fuel flows from the supply pipe 23 past the valve 24and into the passageway of the plug 22, it must enter the inner tube 26.It passes through this tube and out the open end thereof, from whence itcirculates through the porous packing 27 to the cross pipe 19 which isat the opposite end of the generator from the open end of the inner tube26. As this liquid fuel is passing through these parts, heat which isgenerated in a manner hereinafter to beset forth, causesthe same tobecome vaporized before it reaches the pipe 19.

This gaseous fuel and any liquid fuel. which has not yet been vaporizedis carried along therewith through the gauze screens 7 20 and into theotherleg '18 of the coupling 16. These screens 20 effectively remove anycarbon which may have been formed within the pipe 14. From the portion18 of the One coupling the gas enters the superheating pipe 15 whichisconnected to one end of this part,1 8. The other end of this part ofthe F coupling is closed by a stuffing box 28. The

end of" the pipe 15, which is considerably longer than the pipe 1 1 asevident from the several figures of the drawings, is connected to themixing chamber 8 and the entrance of mixing chamber. The stem 31. forthevalve 29 extends throughout the lengthof the pipe 15 and through thestulling box 28. By providing this long valve stem it is obviousthat anycarbonwhich may collect within the intermediate portions of the pipe15may be readily removed. Inorder' to prevent the portion of the pipe 15adjacent the valve 29 from'being clogged with carbon, a 'coil 32 ofaluminum wire 1s disposed' -around the valve stem 31, as shown 1n Flgs.'8 and 9.

It has been found by practical'experiment' that a coil formed of thiskind ofwire will not collect carbon as will coils of'other metals,therefore it is unnecessaryto clean the pipe except at long intervals.Even though smallv particles of'carbon collect on the wire, the same arereadily blown off by a blast of gas throughthe. pipe. For. this reasonaluminum is used in placelof the usual asbestosfiller.

As shown in the drawings, thepart's of the generator G are disposedhorizontally.

over the heating pan 12, so that in starting the operation of the deviceboth pipes 14 and 15 may be equally heated, thereby more quicklygenerating gas foruse in the burner- B. Since it is necessary tocontinuously generate gas for use in the burner B when the device is inoperation, a supplemental burner33 is provided," the same consisting ofa pair of pipe sections 34, one of which is connected to each side of aT-coupling 35.

The latter coupling is connected to the end of thegbody member 1adjacent the bossesi and 5by means of the elbow 36. a a

i From Figs 23nd 3 it lbe seen that this supplemental burner. 33 extendsparallel to the arms of the body member land between the same, and alsoparallel to the generating pipe 14- of the generator G,,said pipe beingpreferably arranged in close proximity'to the slits 37 in one side ofthe pipe-sections;

34. Thus it will be seen that some of the gas whichis generatedandpassed through the body member 1 enters-the main burner a positionthat the heat from the supplemental burner 33 in addition to heating thegenerator, will also heat the oven of the stove.

The operation of the burner is readily evident from the drawings, butbriefly described is as follows :In first starting the device a quantityof liquid fuel is poured into the heating pan 12 through the inlet pipe12, and this fuel is ignited so as to vaporize the liquid fuel whichflows into the generator pipe 14 when the valve 24 is opened. After theoil or other fuel in the pan 12 has burnt itself out, or aftersufficient as has been generated in the pipes 14 and l5', the valve 29is opened, thereby allowing this newly generated gas to flow into thebody member 1 from whence it is distributed to the two burners. Thegeneration of a new supply of gaseous fuel is main tained by the heatfrom the supplemental burner 33 as above set forth.

lVith the construction above described, any preferred form of mainburner G may be used, several being illustrated in the pres entapplication. In Figs. 1, 4, 5, 6 and 7 is illustrated one form of burnerwhich may be attached to the boss 5. Thisburner consists of acylindrical tubular member 38, its 0pposite ends being open to receivethe outer ends of an air circulation pipe 39 which extends throughoutthe length thereof. The ends of this pipe 39 are externally threaded toreceive the nuts 40 which, when threaded on the pipe 39 bear againstwashers 41 which serve to close the ends of the outer pipe 38 and rendersaid ends gas tight. The gaseous fuel from the body member enters theouter pipe around the air inlet pipe 39 through the nipple 42. Theopposite sides of this outer pipe 38 are provided with a plurality ofvertical slits 43 which form burner openings, through which the gasflows. It will be noted, particularly from Fig. 5, that each of theseslits is formed in a rib 44 which projects from the side of the pipe,the inner portions of the ribs being cored out as shown at 45. Theprovision of the air circulation pipe 39 prevents the burner fromoverheating, since a continuous flow of cool air may pass through thecenter of the burner and between the two series of burner openings.

In Figs. 10 to 16 is illustrated an additional form of burner which maybe connected to the body member of the device, these figuresillustrating three different methods of constructing this modified formof burner. In each of the three variations of the burner illustrated inthese figures, the heads H are preferably spaced from the body member bymeans of an upright pipe 46, the length of which depends upon the typeof stove and the height of the fire box in which the invention isplaced. In stoves 'Wl lifill are primarily adapted for heating, the

fire boxes are rather tall, and in such a case the upright pipe 46 willbe rather long. A crossor branch pipe 47 is connected to the upper endof the upright pipe 46, and is adapted to have secured to each end oneof the heads H.

All of these heads H are formed substantially alike although some arestraight, and others curved to a greater or less extent. The inner facesof the heads, which are tubular, are concaved as shown at 48, thus pro--viding a greater cooling surface to be reached by cool air to preventthe overheat ing of the burner. The same principle employed in theseburners as in the first mentioned burner having the air circulation pipe39. The outer faces of the heads H are each provided with two series ofvertical slits 49 which form burner openings. Each series of burneropenings extends from the end of the head to a point spaced from theinlet opening which is formed intermediate the ends thereof. Thisarrangement provides a space 50 opposite the opening in each head H inwhich there are no burner openings, thereby more evenly distributing thegas which enters the heads from the branch pipes 47 It is obvious thatif the slits were formed in this portion 50, a greater quantity of gaswould be forced through the same than through those openings toward theend of the head.

1. In a device of the class described, a body member comprising aJ-shaped pipe, the arms thereof being parallel and disposed in the samehorizontal plane, a base secured to the body member, a burner mounted onone of the arms of said member, an elongated gas generating tube ofrelatively small diameter secured to the other arm of said body memberat one end, an. H-shaped cou pling pipe at the opposite end of saidtube, a second tube closed at one end and connected at the opposite endto said coupling and extending in parallel relation to said first tube,an auxiliary burner on an arm of said J shaped pipe adjacent one of thetubes, oil flow retarding material in one of said tubes and gassuperheating means in the other, an oil supply valve in one arm of saidcoupling, a gas controlling valve in the other arm, and a priming pan insaid base below said tubes.

2. In a device of the class described, a body member comprising asubstantially J- sbaped pipe, a pair of bosses extending in oppositedirections from the long arm thereof adjacent its free end, a basesecured to one of said bosses, a burner mounted on the other boss, and agas generating member connected with the short arm of the body member.

In a device of the class described, a body member comprising asubstantially J in e shaped pipe, a pair of bosses extending in opposite(llIQCflOllS from said. body member, a base secured to one of saidbosses, a main burner mounted on the other boss and disposed above thebody member, a gas generating member connected with the body member, anda supplemental. burnerpositioned below the. main burner to throw itsflame against said gas generating member.

In a device of the class described, a body member, a base connected tosaid body member for supporting the same, a burner mounted upon saidbody member, a gas super-heating tube connected to the body member, avalve in said gas superheating tube to control the flow of gas into saidbody member, a second gas generating tube connected with saidsuper-heating tube and a valve therein to control the flow of liquidfuel. 7

5. In a device of the class described, a base, a body member connectedto said base, a burner on the body member, a gas generatingtubeconnected to the body member,

a valve in said tube to control the flow of gas into said body member,and a helical coil of aluminum Wire surrounding the stem of said valvewithin the tube, whereby to prevent the formation of carbonaceousdeposits in said gas gene-rating tube.

0. In a device of the class described, a base, a body member connectedto said base, a burner on the body member, a gas generating membercomprising a pair of spaced parallel pipes, one being a generating pipeand the other a superheating pipe, a valved inlet in one end of thegenerating pipe, the other end thereof being closed, an inner tube insaid pipe and having one end connected to the valved inlet, an outletvalve in one end of the superheating pipe, said end being connected tothe end of said body member,

a stufling box closing the other end of the Copies of this patent may beobtained for five cents each, by addressing the Washington, D. G.

super-heating, pipe,a connection b'etween the '7. In a device-of theclass described, a 7

base, a body member connected to said base,

a burner on the body member, a gas gener ating member comprising incombination, a

substantially H-shaped coupling, a valved inlet plug 1n one end of oneleg of saidcoupling, a generating pipe in the other end of said leg, aninner tube disposed in said generating pipe and having one-endconnectedto said plug, the other end being spaced fromthe outer endof thegenerating pipe, a superheating pipe connected to one end of the otherleg of said 'couplin'g,a stufling box closing the other end of said leg,an outlet'valve inthe outer end of the superheating pipe, said end ofthe pipe be ing connected withthe body member, and a screen in thepassageway between the legs of said coupling. r

S. In a device of the class described, a gas generating'member, agassupply'pip'e extending from said member, a branch pipe connectedintermediate its ends to the end of said supply pipe, and an elongatedtubular burner member on each end of the branch pipe, the ends of saidbranch pipe entering the burner members intermediate their ends,

said burner members each having a pairof series of burner openings ,in'their outer faces, the inner openings of said series bepipe.

In testimony whereof I have hereunto set my hand in the presence of tWosubscribing witnesses.

ing spaced from theends of said branch GEORGE W. SMITH.

Commissioner of Patents,

